Quantity stop mechanism for measuring pumps



Mar. 20, 1923. 1,448,798.

B. F. GEYER. QUANTITY STOP MECHANISM FOR MEASURING PUMPS. FILED SEPT.27. 1921.

A TTOR E Y.

Patented air. 2@, T923,

it di t ti BEN-FAWN F. GEYER, OF FORT WAYNE, INDIANA, ASSIGNOR TO WAYNE OIL TANK ANJD PUMP COMPANY, OF FORT WAYNE, INDIANA, A CQRPORATION OF INDIANA.

QUANTITY STOP MECHANISM FOR MEASURING PUMPS.

Application filed September 27, 1921. Serial No. 503,638.

T all whom it may concern:

Be it known that I, BENJAMIN F. GEYER, a citizen of the United States, residing at Fort \Va-yne, in the county of Allen and 5 State of Indiana, have invented new and useful Improvements in Quantity Stop Mechanism for Measuring Pumps, of which the following is a specification.

My, improvements relate to measuring: pumps such as those used for gasoline; and particularly to the means for limiting the movement of the pump piston'to ensure" discharge of the quantity of liquid desired.

The invention consists of a new combination of rod and stops thereon; andis char acterized by few and simple parts, and ease of manipulation.

My invention is illustrated in the accompanying drawing in which;-

Figure 1, is an elevation of the device and the lower portion of rack fixed to the piston-rod, together with the projection carried by the rack. The stop-rod is shown broken to shorten same; the lowest sto) is shown side view or contact posit-ion, w en one gallon is to be delivered; the second stop is shown back view; the third stop is shown front view and the fourth or top stop is shown in vertical axial section from front to back,

Fig. 2, is a cross section'on the line 2--2 of Figure 1, as tho the rack was there shown in full,v

Fig. 3, a detail, is an alternative form,

showing inside elevation, a plain, ungrooved rod with a stop thereon, secured in vertical position by a collar above and one below, and

Fig. 4;, a detail, is an alternative form,

to showing inside elevation, a plain, ungrooved rod with an integral stop and sleeve to space the stops.

Referring now to the drawings; G is the gear rack fixed to the piston-rod l for reciprocating the piston. A projection g, on the rack Grextends toward the stop rod lit far enough to strike when the rack is raised against any one of the stops S, when set'in contact or using position like the lowest to one shown.

vertical position on the rod, while allowing t to rotate thereon.

Under each stop S are tworecesses '1' in which a steel ball s seats under pressure of the spring ()ne recess is so placed as to keep thestop in position when aligned for contact with the projection g, and the other to keep it in position when set to keep it from being engaged by said projection. A handle 8 is provided for convenience in adjusting the stops by rotation.

The stop is drilled on its front or projecting end parallel with the rod R, and threaded to receive a setscrew s and the head is cross-drilled with holes .8 to receive a sealing wire 8. At a convenient adjacent place toward the front of the stop is drilled a hole a. When the screw 8 has been so adjusted as to ensure its contact with the projection 9 just at the point where the desired quantity of liquid will have been pumped the wire 8 is passed thru the hole 8 in the block and the parallel hole 3 in the screw head, drawn snug and sealed by the seal 8 in the usual manner.

Considering now Fig. 3, the rod R is without groove, and the stop S is held in position by the collars C, C and the pins 0, c Otherwise the mechanism is the same as shown in Figs. 1 and 2.

Figure 4, has a rod R without groove also but the stops S, are extended forming a. sleeve 3 above or below or both above and below the stop proper so that the stops rest one upon the ther or may have an intervening washer (not shown). When formed as shown in Fig. 4 the combined stop and sleeve units must completely cover the rod or be held at the tr; or bottom or both as to prevent their :ongit-udinal movement on the rod.

The stops may bear numbers as shown to indicate the gallons or other units of measure the'punlp is set to dispense, when said stop is brought into engaging position with the projection on the rack.

Obviously the ball might be replaced by a plunger pin with a rounded endto bear .upon the rod, without departing from the spirit of my invention.

I claim as my invention and desire to secure by Letters Patent of the United States;

1. In combination with a projection on the piston rack of a measuring pump; a

quantity stop rod substantially parallel with said rack, stops on said rod adapted to be rotated thereon into and out of the path of said projection to limit the stroke of said means, a ball and spring within the stop for pressing said ball against the rod and recesses on the rod so placed as to permit the setting of stop so as to be either. in or out of the path of said pro ection, and an my hand in presence of two subscribing witadjustment screw on said stop substantially parallel'with said rod, said screw and stop adapted to be sealed together to prevent rotation of the screw.

2. In combination with a. projection on a reciprocable operating means of a measurball against the rod, and recesses on the rod so placed as to permit the setting of the stop at will so as to be either in or out of the path of said projection.

In testimony whereof I have hereunto set nesses.

BENJAMIN F. GEYER.

Witnesses FRANK C. CRANDALL, F. \VEMHOFF. 

